CN105134540B - One kind utilizes the quantitative liquid delivery molluscicide device of tide and its application - Google Patents

Abstract

The invention relates to a device for quantitatively injecting liquid molluscicide by using tides and an application thereof, belonging to the technical field of schistosomiasis prevention and control. It includes a sealed cylinder, on which a drug feed pipe and a drug discharge pipe are arranged at the upper end of the sealed cylinder, and the drug feed pipe and the drug discharge pipe are respectively connected to the sealed cylinder through a one-way valve; the lower end of the sealed cylinder is provided with a piston, and the piston Connect with float. When the water rises, the water level rises, pushing the float to drive the piston to rise, the one-way valve connected to the medicine inlet pipe is closed, the one-way valve connected to the medicine discharge pipe is opened, and the liquid molluscicide medicine in the sealed cylinder is discharged; When descending, the float drives the piston to descend, the one-way valve connected to the medicine inlet pipe opens, the one-way valve connected to the medicine discharge pipe closes, and the liquid molluscicide medicine is sucked into the sealed cylinder by the medicine inlet pipe. The device provided by the present invention for quantitatively injecting liquid molluscicide by using tides is fully automatic, has a simple structure and is easy to operate, reduces the cost of medication, improves the molluscicide effect, and releases the medicine every time a tide passes.

Description

A device for quantitatively injecting liquid molluscicide using tides and its application

technical field

The invention relates to a device for quantitatively injecting liquid molluscicide by using tides and an application thereof, belonging to the technical field of schistosomiasis prevention and control.

Background technique

Oncomelania is an amphibious mollusc and the only intermediate host of Schistosoma japonicum. It is mainly distributed in the rivers and lakes islands and beach areas where the land is in winter and the water is in summer, that is, the beach between the dry water line and the wet water line. After flooding or receding, the beach is integrated with the water body of the river and lake, and it is difficult to carry out molluscicide. The spraying method is often used to kill the snails on the beach before the water rises or after the water recedes. The dosage is relatively large and it is difficult to achieve the desired effect. The amount of killing snails by dipping method is equivalent to one-thousandth of that by spraying method, but it needs to build dams to lift water, which is difficult to operate. These two methods are not combined with the ecology and breeding rules of oncomelania, which is time-consuming and labor-intensive, and it is difficult to achieve the ideal purpose of controlling oncomelania. Therefore, taking advantage of the fact that the tides of rivers and lakes are highly consistent with the ecological environment and living area of snails, and using tidal water as the power and water source, an automatic dosing device has been developed for killing snails on the islands and beaches of rivers and lakes, which not only reduces the cost of medication, but also improves the efficiency. Molluscicide effect.

Contents of the invention

The object of the present invention is to provide a device for quantitatively injecting liquid molluscicide using tides and its application, which reduces the cost of medication and improves the effect of molluscicide.

The technical scheme of the present invention is a device for quantitatively injecting liquid molluscicide by using tides, which includes a sealed cylinder body, and a drug feed pipe and a drug discharge pipe are arranged on the upper end of the sealed cylinder body, and the drug feed pipe and the drug discharge pipe are connected through respective The one-way valve is connected with the sealing cylinder; the lower end of the sealing cylinder is provided with a piston, and the piston is connected with the float. The volume of the sealed cylinder is 10-1000mL.

The application of the device for quantitatively injecting liquid molluscicide by using tides comprises the steps of: fixing the device on the ground on the island beach of rivers and lakes; When the water level rises, the floater is pushed to drive the piston to rise, the one-way valve connected to the medicine inlet pipe is closed, the one-way valve connected to the medicine discharge pipe is opened, and the liquid molluscicide medicine in the sealed cylinder is discharged; when the water level drops due to the tide , the float drives the piston down, the one-way valve connected to the drug inlet pipe opens, the one-way valve connected to the drug discharge pipe closes, the liquid molluscicide is sucked into the sealed cylinder by the drug inlet pipe, and the entire drug discharge and feeding process is completed.

Beneficial effects of the present invention: The device for quantitatively injecting liquid molluscicide by using tides provided by the present invention is fully automatic, has a simple structure and is easy to operate, reduces the cost of medication, improves the effect of killing molluscs, and releases the medicine every time a tide passes.

Description of drawings

Fig. 1 is a schematic diagram of the structure of the present invention.

Explanation of reference numerals: 1. medicine feeding pipe; 2. medicine discharging pipe; 3-1. one-way valve; 3-2. one-way valve; 4. piston; 5. float; 6. sealing cylinder.

detailed description

Example 1

As shown in Figure 1, a device that utilizes tides to quantitatively inject liquid molluscicides includes a sealed cylinder 6, a drug feed pipe 1 and a drug discharge pipe 2 are arranged at the upper end of the sealed cylinder 6, and the drug feed pipe 1 passes through a one-way valve. 3-1 is connected to the sealing cylinder 6, and the drug discharge pipe 2 is connected to the sealing cylinder 6 through the one-way valve 3-2; the lower end of the sealing cylinder 6 is provided with a piston 4, and the piston 4 is connected to the float 5.

Application Example 1

Make a sealed cylinder with a volume of 200 mL as described in Example 1, and connect the other end of the feeding tube 1 to a plastic bucket (50 kg) filled with liquid molluscicide drug 26% tetraspirulina. The device is fixed in a low-lying area of a river beach, and the other end of the drug feeding tube 1 is connected to the bottom of the drug packaging barrel; when the water rises, the water level rises, pushing the float 5 to drive the piston 4 to rise, and connecting the one-way valve of the drug feeding tube 1 3-1 is closed, and the one-way valve 3-2 connected to the drug discharge pipe 2 is opened to discharge the liquid molluscicide drug in the sealed cylinder 6; The one-way valve 3-1 of the pipe 1 is opened, the one-way valve 3-2 connected with the medicine discharge pipe 2 is closed, and the liquid molluscicide medicine is sucked into the sealing cylinder 6 by the medicine feeding pipe 1, and the whole medicine discharging and feeding process is completed. The liquid molluscicide drug is distributed in the water body under the action of water flow, and the drug can be automatically and continuously administered for 35 days.

Application Example 2

A sealed cylinder with a volume of 400 mL was prepared as described in Example 1, and the other end of the feeding tube 1 was connected to a plastic barrel (50 kg) filled with liquid molluscicide drug 26% tetraspirulina. The device is fixed in a low-lying area of a river beach, and the other end of the drug feeding tube 1 is connected to the bottom of the drug packaging barrel; when the water rises, the water level rises, pushing the float 5 to drive the piston 4 to rise, and connecting the one-way valve of the drug feeding tube 1 3-1 is closed, and the one-way valve 3-2 connected to the drug discharge pipe 2 is opened to discharge the liquid molluscicide drug in the sealed cylinder 6; The one-way valve 3-1 of the pipe 1 is opened, the one-way valve 3-2 connected with the medicine discharge pipe 2 is closed, and the liquid molluscicide medicine is sucked into the sealing cylinder 6 by the medicine feeding pipe 1, and the whole medicine discharging and feeding process is completed. The liquid molluscicide drug is distributed in the water body under the action of water flow, and the drug can be automatically and continuously administered for 18 days.

Application Example 3

Make a sealed cylinder with a volume of 200 mL as described in Example 1, and connect the other end of the feeding tube 1 to a plastic bucket (50 kg) filled with liquid molluscicide drug 26% tetraspirulina. The device is fixed in a low-lying area of a river beach, and the other end of the drug feeding tube 1 is connected to the bottom of the drug packaging barrel; when the water rises, the water level rises, pushing the float 5 to drive the piston 4 to rise, and connecting the one-way valve of the drug feeding tube 1 3-1 is closed, and the one-way valve 3-2 connected to the drug discharge pipe 2 is opened to discharge the liquid molluscicide drug in the sealed cylinder 6; The one-way valve 3-1 of the pipe 1 is opened, the one-way valve 3-2 connected with the medicine discharge pipe 2 is closed, and the liquid molluscicide medicine is sucked into the sealing cylinder 6 by the medicine feeding pipe 1, and the whole medicine discharging and feeding process is completed. The liquid molluscicide drug was distributed in the water body under the action of water flow. After 35 days, the molluscicide was inspected and the death of the molluscs was observed. The result showed that the density of oncomelania decreased by 95%.

Claims (1)

1. An application of a device for quantitatively injecting liquid molluscicides using tides, characterized in that: The device includes a sealed cylinder (6), on which a drug inlet pipe (1) and a drug discharge pipe (2) are arranged at the upper end of the sealed cylinder (6), and the drug inlet pipe (1) passes through a one-way valve (3-1) Connected to the sealed cylinder (6), the drug discharge pipe (2) is connected to the sealed cylinder (6) through the one-way valve (3-2); the lower end of the sealed cylinder (6) is provided with a piston (4), the piston (4) Connect with the float (5); The volume of the sealed cylinder (6) is 10-1000mL; Its application steps are as follows: fix the device on the ground of the islands and beaches of rivers and lakes, connect the other end of the medicine feeding pipe (1) to the bottom of the liquid molluscicide medicine packaging barrel; when the water rises, the water level rises, and the float (5 ) drives the piston (4) to rise, the one-way valve (3-1) connected to the medicine inlet pipe (1) is closed, the one-way valve (3-2) connected to the medicine discharge pipe (2) is opened, and the sealed cylinder (6 ) in the liquid molluscicide drug; when the water level drops due to the tide, the float (5) drives the piston (4) down, and the one-way valve (3-1) connected to the drug inlet pipe (1) opens, and the drug discharge pipe is connected The one-way valve (3-2) of (2) is closed, and the liquid molluscicide medicine is sucked into the sealing cylinder (6) by the medicine feeding pipe (1), and the whole medicine discharging and feeding process is completed.